How to identify different types of faulty smoke

[Knowledge of the owner's family car]The smoke from the car can be large or small, and many novice car owners are always at a loss in the face of car smoking. In fact, don't panic when there is a faulty smoke, carefully observe the smoke situation, different faulty smoke has different solutions, so you must first understand the type of smoke.

Situation 1: Black smoke

Car body performance:The car’s engine shakes a lot, the exhaust pipe makes an abnormal sound, and at the same time it emits black smoke, and it feels weak when accelerating.

cause of issue:The phenomenon of exhausting black smoke is more common in carburetor vehicles. This is because the fuel injection volume of carburetor models is not controlled by the computer, but controlled by the pedal accelerator. In some cases, too much fuel enters the cylinder and later is not enough. The combustion is discharged out of the car, which causes the black smoke we see.

Solution:1. Carburettor cars are basically old now, and the aging degree of carburetor and other parts should be checked frequently. Carburettor cars are different from EFI cars, and they should be maintained and adjusted frequently to make them well developed. Habit of using cars. 2. For EFI vehicles, check the cylinder line every 30,000 kilometers and the spark plug every 10,000 kilometers. If there is a problem, replace it in time.

Situation 2: White smoke

Car body performance:It can be seen that a large amount of white water vapor emerges and the engine is not running smoothly, even if the engine is warmed up to the normal working water temperature, there is still a large amount of water vapor emerging.

cause of issue:The white smoke may be caused by the wear of the cylinder gasket of the engine cylinder, which creates a certain gap, which causes a large amount of water in the heat dissipation system to enter the combustion chamber. Water cannot be burned. When heated, water vapor is generated, which is directly discharged from the exhaust pipe.

Solution:1. Check the engine block and cylinder head gasket for damage, and check whether there is water in the fuel tank. 2. Check the car manual and add gasoline with the correct label in strict accordance with the manufacturer's regulations.

Situation 3: Blue Smoke

Car body performance:The explosive power of the vehicle decreases, the acceleration is weak, the noise becomes louder, and blue smoke is emitted from the exhaust pipe, accompanied by the burnt smell produced by the burning of organic oil. By checking the oil dipstick, it is also found that the consumption of oil is too large. Normally, after each maintenance, after 7500 kilometers of driving, the consumption of oil should be within the normal range, and there is no need to replenish it midway.

cause of issue:Blue smoke is mostly caused by internal failures of the engine, causing oil to flee into the combustion chamber and burn. There are generally two common situations: scratches on the inner wall of the cylinder, poor piston sealing, or severe wear on the valve, which will cause gaps, and it was originally responsible. At this time, the lubricated oil will enter the combustion chamber through these gaps to participate in the combustion, and when the incombustible oil is discharged outside the car, blue thick smoke is produced.

Solution:1. For older vehicles, check the tightness of cylinders, pistons and other components frequently. When blue smoke is found, go to the maintenance station for repairs in time to prevent greater losses. 2. Add proper amount of engine oil, too much or too little is not advisable. Check the oil usage regularly. Once you find abnormal oil consumption, go to a professional repair station for inspection immediately.

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